windows 如何检查防火墙中的开放端口
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how to check open ports in my firewall
提问by user194076
I have an internet connection from school, where there are restriction about what ports webapp can use. Is it possible, to use my computer to check what ports are allowed to use and can be used? I'm having problem with websockets in couple of locations, so I would like to use client computer to do that. Is there any snippet of code that I can run in chrome console or any command line command?
我有来自学校的互联网连接，那里对 webapp 可以使用的端口有限制。有没有可能，用我的电脑检查哪些端口可以使用和可以使用？我在几个位置遇到了 websockets 的问题，所以我想使用客户端计算机来做到这一点。是否有任何代码片段可以在 chrome 控制台或任何命令行命令中运行？
回答by blahdiblah
I've always liked ShieldsUP!for checking open ports.
我一直喜欢ShieldsUP！用于检查开放端口。
回答by dani herrera
Nmap ("Network Mapper") is a free and open source (license) utility for network exploration or security auditing. Many systems and network administrators also find it useful for tasks such as network inventory, managing service upgrade schedules, and monitoring host or service uptime
Nmap（“网络映射器”）是一种用于网络探索或安全审计的免费开源（许可）实用程序。许多系统和网络管理员还发现它对于网络库存、管理服务升级计划以及监控主机或服务正常运行时间等任务很有用
